56619938 has 8 divisors (see below), whose sum is σ = 85060380. Its totient is φ = 28266480.

The previous prime is 56619917. The next prime is 56619961. The reversal of 56619938 is 83991665.

It can be written as a sum of positive squares in 2 ways, for example, as 50651689 + 5968249 = 7117^2 + 2443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56619892 and 56619901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20093 + ... + 22736.

Almost surely, 2^56619938 is an apocalyptic number.

56619938 is a deficient number, since it is larger than the sum of its proper divisors (28440442).

56619938 is a wasteful number, since it uses less digits than its factorization.

56619938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43492.

The product of its digits is 349920, while the sum is 47.

The square root of 56619938 is about 7524.6221167578. The cubic root of 56619938 is about 383.9928429294.

The spelling of 56619938 in words is "fifty-six million, six hundred nineteen thousand, nine hundred thirty-eight".